London Java Community

A group of professional Java Developers who meet regularly for presentations on the latest technologies and movements within the Java world.

Curated by Barry Cranford

September 13, 2014

iOS Today Widget in Swift - Tutorial

Xebia Blog
Since both the new app extensions of iOS 8 and Swift are both fairly new, I created a sample app that demonstrates how a simple Today extension can be made for iOS 8 in Swift. This widget will show the latest blog posts of the Xebia Blog within the t More...
September 12, 2014

React In Modern Web Applications: Part 2

Xebia Blog
As mentioned in part 1 of this series, React is an excellent Javascript library for writing highly dynamic client-side components. However, React is not meant to be a complete MVC framework. Its strength is the View part of the Model-View-Controller More...
September 11, 2014

Xcode 6 GM & Learning Swift (with the help of Xebia)

Xebia Blog
I guess re-iterating the announcements Apple did on Tuesday is not needed. What is most interesting to me about everything that happened on Tuesday is the fact that iOS 8 now reached GM status and Apple sent the call to bring in your iOS 8 uploads to More...
September 9, 2014

Running unit tests on iOS devices

Xebia Blog
When running a unit test target needing an entitlement (keychain access) it does not work out of the box on Xcode. You get some descriptive error in the console about a "missing entitlement". Everything works fine on the Simulator though. Often this More...
September 8, 2014

Technology news about start-ups big data cloud IoT Liferay

Armel Nenes Blog
After over two years of break, I'm back at it again – this time with a redefined purpose. As before, I will be sharing my technical views and experience through articles, whitepaper, tutorials. I will include interviews with tech start-ups from More...
September 8, 2014

Xebia KnowledgeCast Episode 3

Xebia Blog
The Xebia KnowledgeCast is a bi-weekly podcast about software architecture, software development, lean/agile, continuous delivery, and big data. Also, we'll have some fun with stickies! In this third episode, we get a bit more technical with me inter More...
September 8, 2014

Getting started with Salt

Xebia Blog
A couple of days ago I had the chance to spend a full day working with Salt(stack). On my current project we are using a different configuration management tool and my colleagues there claimed that Salt was simpler and more productive. The challenge More...
September 7, 2014

Are Testers still relevant?

Xebia Blog
Last week I talked to one of my colleagues about a tester in his team. He told me that the tester was bored, because he had nothing to do. All the developers wrote and executed their tests themselves. Which makes sense, because the tester 2.0 trie More...
September 4, 2014

Welcome to the Swift Playground

Xebia Blog
Imagine... You're working in swift code and you need to explain something to a co-worker. Easiest would be to just explain it and show the code right. So you grab your trusty editor and type some markdown. let it = "be awesome" Great! So now you have More...
September 4, 2014

Our JavaOne Schedule for 2014

jClarity
Kirk, Ben and Martijn will all be presenting on a variety of topics including Performance, Garbage Collection, OpenJDK, NetBeans, the Just In Time compiler and how to create an environment for a happy tech team :-). We’d love to see you at the More...
September 2, 2014

React in modern web applications: Part 1

Xebia Blog
At Xebia we love to share knowledge! One of the ways we do this is by organizing 1-day courses during the summer. Together with Frank Visser we decided to do a training about full stack development with Node.js, AngularJS and Facebook's React. T More...
August 28, 2014

CocoaHeadsNL @ Xebia on September 17th

Xebia Blog
On Wednesday the 17th the Dutch CocoaHeads will be visiting us. It promises to be a great night for anybody doing iOS or OSX development. The night starts at 17:00, diner at 18:00. If you are an iOS/OSX developer and like to meet fellow developers? C More...
August 27, 2014

What is your next step in Continuous Delivery? Part 1

Xebia Blog
Continuous Delivery helps you deliver software faster, with better quality and at lower cost. Who doesn't want to delivery software faster, better and cheaper? I certainly want that! No matter how good you are at Continuous Delivery, you can always d More...
August 27, 2014

Mastering Eclipse Plug-in Development published

AlBlue's Blog
This week saw the publication of my second book, Mastering Eclipse Plug-in Development. Hopefully this explains why this blog hasn’t seen updates in a while; after some 360 pages and some 75k words, spare writing time has been a bit of a luxur More...
August 27, 2014

Mastering Eclipse Plug-in Development published

AlBlue’s Blog
This week saw the publication of my second book, Mastering Eclipse Plug-in Development. Hopefully this explains why this blog hasn’t seen updates in a while; after some 360 pages and some 75k words, spare writing time has been a bit of a luxur More...
August 26, 2014

Synchronize the Team

Xebia Blog
How can you, as a scrum master, improve the chances that the scrum team has a common vision and understanding of both the user story and the solution, from the start until the end of the sprint?    The problem The planning session is where the team More...
August 25, 2014

Vert.x with core.async. Handling asynchronous workflows

Xebia Blog
Anyone who was written code that has to coordinate complex asynchronous workflows knows it can be a real pain, especially when you limit yourself to using only callbacks directly. Various tools have arisen to tackle these issues, like Reactive Exten More...
August 25, 2014

Docker on a raspberry pi

Xebia Blog
This blog describes how easy it is to use docker in combination with a Raspberry Pi. Because of docker, deploying software to the Raspberry Pi is a piece of cake. What is a raspberry pi? The Raspberry Pi is a credit-card sized computer that plugs in More...
August 24, 2014

Testing with Spring MockMvc and json-path “java.lang.NoClassDefFoundError: com/jayway/jsonpath/InvalidPathException”

The Tai-Dev Blog
I recently started a new Spring Boot project and was configuring my initial MockMvc Integration tests, and although I could happily static import jsonPath (via import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.jsonPath More...
August 23, 2014

Xebia IT Architects Innovation Day

Xebia Blog
Friday August 22nd was Xebia’s first Innovation Day. We spent a full day experimenting with technology. I helped organizing the day for XITA, Xebia’s IT Architects department (Hmm. Department doesn’t feel quite right to describe what we are, bu More...
August 20, 2014

Clustered Idempotent Consumer Pattern with Infinispan

Bilgin Ibryam's Open Source Journeys
I've created a small project that shows how to use JBoss Infinispan with Apache Camel and the Idempotent Consumer Pattern to guarantee a message will not be processed twice in a clustered environment.Imagine you have an application that has to scale More...
August 20, 2014

Help! Too Many Incidents! - Capacity Assignment Policy In Agile Teams

Xebia Blog
As an Agile coach, scrum master, product owner, or team member you probably have been in the situation before in which more work is thrown at the team than the team has capacity to resolve. In case of work that is already known this basically is a sc More...
August 20, 2014

BE Agile before you Become Agile

Xebia Blog
People dislike change. It disrupts our routines and we need to invest to adapt. We only go along if we understand why change is needed and how we benefit from it. The key to intrinsic motivation is to experience the benefits of the change yourself, r More...
August 19, 2014

Agile 2014 – speaking and attending; a summary

Xebia Blog
So Agile 2014 is over again… and what an interesting conference it was. What did I find most rewarding? Meeting so many agile people! My first conclusion was that there were experts like us agile consultants or starting agile coaches, ScrumMasters More...
August 17, 2014

Little's Law in 3D

Xebia Blog
The much used relation between average cycle time, average total work and input rate (or throughput) is known as Little's Law. It is often used to argue that it is a good thing to work on less items at the same time (as a team or as an individual) an More...
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